c4e_aes.h (Version 521)

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/******************************* -*- mode: C -*- *****************************/
#ifndef C4E_AES_H
#define C4E_AES_H


/* INCLUDES ******************************************************************/

#include "c4e_arch.h"
#include "c4e_cipher.h"


#ifdef  __cplusplus
extern "C" {
#endif


/* DEFINES *******************************************************************/


#define C4E_AES_STATE_COLUMNS   4U 
#define C4E_AES_STATE_ROWS      4U 
#define C4E_AES_STATE_SIZE      ((C4E_AES_STATE_COLUMNS * C4E_AES_STATE_ROWS) \
                                 / sizeof(C4eAesState))

#define C4E_AES128_ROUNDS       10U              
#define C4E_AES192_ROUNDS       12U              
#define C4E_AES256_ROUNDS       14U              
#define C4E_AES_CTX_SIZE(rnds)  (((rnds) + 2U) * C4E_AES_STATE_SIZE)


#define C4E_AES128_CTX_SIZE     C4E_AES_CTX_SIZE(C4E_AES128_ROUNDS)

#define C4E_AES192_CTX_SIZE     C4E_AES_CTX_SIZE(C4E_AES192_ROUNDS)

#define C4E_AES256_CTX_SIZE     C4E_AES_CTX_SIZE(C4E_AES256_ROUNDS)

#define C4E_AES_MAX_CTX_SIZE    C4E_AES256_CTX_SIZE


#define C4E_AES128_KEY_SIZE     16U          
#define C4E_AES192_KEY_SIZE     24U          
#define C4E_AES256_KEY_SIZE     32U          
#define C4E_AES_BLOCK_SIZE      16U            
/* TYPEDEFS ******************************************************************/


#ifdef C4E_HAVE_UINT32
typedef C4eArchUint32 C4eAesState;
#else  /* !C4E_HAVE_UINT32 */
typedef C4eArchUint8 C4eAesState;
#endif /* C4E_HAVE_UINT32 */


/* MACROS ********************************************************************/


/* PROTOTYPES ****************************************************************/


/* FUNCTION ******************************************************************/
    void c4e_aes_setup(C4eCipherId algo, C4E_CONST C4eArchUint8* key, C4eAesState* ctx);



/* FUNCTION ******************************************************************/
    void c4e_aes_encrypt(C4eCipherId algo,
                         C4eAesState* C4E_RESTRICT ctx,
                         C4E_CONST C4eArchUint8* C4E_RESTRICT plain,
                         C4eArchUint8* C4E_RESTRICT cipher);



/* FUNCTION ******************************************************************/
    void c4e_aes_decrypt(C4eCipherId algo,
                         C4eAesState* C4E_RESTRICT ctx,
                         C4E_CONST C4eArchUint8* C4E_RESTRICT cipher,
                         C4eArchUint8* C4E_RESTRICT plain);


#ifdef  __cplusplus
}
#endif



#endif /* C4E_AES_H */


/******************************************************************************/
/* END OF FILE                                                                */
/******************************************************************************/

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